This one turn's fine ,side slips even better the 3rd board is new concept with a different fin concept It's all about testing & seeing what work's & how it can be used .Jeff does this all the time & learn's from each test session. We are looking for performance & speed with a different take in how we did it. Remember we are building & testing different concepts riding them and then taking what we learned to the next build & trying something new the fact that they work weather good ,great or not at all is why we are testing It's like Surfdad's quest for different materials & processes, We have been on the materials & different production type's for a while and are trying to find some new board construction idea's .Remember the Surf Skate was way ahead of it's time now all board makers are pushing smaller board's . We all benefit from concept designs